<input [(ngModel)]="childName" placeholder="Name">
<input [(ngModel)]="childNickName" placeholder="NickName">
<app-child #child [aliasName]="childName" [filterName]="Baby" (cry)="babyCry($event)"></app-child>
<p>baby wowo? {{childStatus ? '正在浑...' : '睡着啦～'}}</p>

<button (click)="child.nickName = childNickName">点我撒</button>
